Sesquipedalian Definition

sĕskwĭ-pĭ-dālyən

noun

A long word.

Webster's New World

Synonyms:

adjective

Measuring a foot and a half.

Webster's New World

Very long.

Webster's New World

Using, or characterized by the use of, long words.

Webster's New World

(of a word or words) Long; polysyllabic.

More people know the sesquipedalian word "antidisestablishmentarianism" than know what it means.

Wiktionary

Synonyms:

Other Word Forms of Sesquipedalian

Singular:

sesquipedalian

Plural:

sesquipedalians

Latin sesquipedalis (literally “a foot and a half long"), from sesqui-, from Latin sesqui (“one and a half"); + pedal, from Latin pedis, form of pes (“foot"), + adjective suffix -alis; + adjective suffix -ian. Cognate to French sesquipédal.

From Wiktionary

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